The $entity_bundle argument of hook_entity_create_access is passed an integer when a bundle consists of only numbers

Problem/Motivation

The following error is displayed when visiting /node/add:

TypeError: eck_site_settings_entity_create_access(): Argument #3 ($entity_bundle) must be of type ?string, int given

Steps to reproduce

Create a 404 node type and visit /node/add in an anonymous session. Add a hook_entity_create_access implementation that typehints the $entity_bundle argument as string.

Proposed resolution

The phpdoc of hook_entity_create_access indicates that the $entity_bundle argument should be a string, so let's make sure it's casted to a string before being passed to implementations.

Remaining tasks

User interface changes

Introduced terminology

API changes

Data model changes

Release notes snippet